Chain-harrow.



No. 869,065. v PATENTED 0017.22. 1907.

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' WITNESSES R lNVENTO 1 v A JOSIAH UA'rsnN H R I ATTORNEYS FFIG.

JOSIAH DATSON, OF GILBERTS GREEK, KENTUCKY.

GHAIN-HARROW.

Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed February 1, 1907- Serial No. 355,180-

To all whom it may concern:

Be it known that I, JosLu-r Da'rson, a citizen of the United States, anda resident of Gilberts Creek, in the county of Lincoln and State ofKentucky, have invented certain new and useful Improvements inChain-Harrows, of which the following is a specification.

My invention is an improvement in harrows and consists in certain novelconstructions and combinations of parts as will be hereinafter describedand claimed.

In the drawings Figure 1 is a top plan view of a harrow embodying myinvention. Fig. 2 is a top plan view showing the front harrow sectionalone. Fig. 3 is a top plan view showing the rear harrow section alone.Fig. 4 is a cross-section of a harrow showing a somewhat 1 5 differentform of vertical link from that shown in Figs.

1 and 2. Fig. 5 illustrates in detail one of the horizon tal links, andFig. (5 illustrates in detail one of the vertical links shown in Fig. 4.

In carrying out my invention I seek to provide a harrow composed oflinks A which may be alike and are linked together longitudinally andlaterally forming longitudinal and lateral rows, and in which thealternate links of the longitudinal rows are connected by cross linkswith the opposite links of the adjacent 2 rows so that these alternatelinks are held approximately in a horizontal plane so that the linksconnecting said alternate links will be caused to operate vertically andthus form runners to cut open the soil and clods in such manner as toproperly prepare the same 3 in the use of the invention.

By preference, the links A are rectangular and are formed 01 metal barswhich are angular in cross-section with the angle at their outer sidesas best shown in Fig. 5 of the drawings, and turned on the sharp cornerof the 3 5 iron to present an approximately sharp edge to split theground and breakup clods in the use of the invention, this beingespecially effective when the alternate links are caused to runvertically as before described.

The draft bar B extends across the front of the harrow 40 and ispreferably formed of iron piping, see Fig. 1, and is coiled at intervalsat B for connection with the front links A of the longitudinal rows andwith coils B for the connection of the bar C, and the bar 0 may beprovided with a suitable hook O for connection with the team.

By preference the Vertical links are as shown in Figs. 4 and 6 providedwith the projecting points a whose ends together with the points orangles a, form the three points which may serve to improve the action ofthe harrow and form three teeth at each side of the drag square. Thisconstruction as best shown in Fig. 6 presents an appearance somewhatsimilar to the well known square and compass.

For extending the harrow laterally 1 provide a spreader bar D extendingtransversely, as shown in Fig. 1, and provided at its ends with hooks D,as best shown in Fig. 4, for holding the harrow stretched laterally. Bymeans of these hooks the stretcher bar can be readily removed andapplied whenever desired.

As shown, I prefer to make the harrow in two sections, with the frontsection detachabl y connected with the rear section by means of deviceswhich may be split rings E, as shown in Fig. 1, and drags F are arrangedat the rear end of the harrow and comprise bars F and suitable weightsor blocks F thereon.

The harrow, as shown in Fig. 1, forms a useful two horse harrow. When itis desired to provide one or two one-horse harrows, the rear section ofthe harrow, shown in Fig. 1 may be detached, and suitable draft devicesG connected with the side links as shown in Fig. 3 and as indicated indotted lines in Fig. l, the drags being connected with the rear links,as shown in Fig. 3, and a short spreader bar H hooked at its ends H maybe provided as shown in said Fig. 3. The front section may also beutilized as a one-horse harrow, as shown in Fig. 2 of the drawings.

The construction is simple, durable, can be easily and cheaplymanufactured, and will be found to operate efliciently for the purposefor which it is designed.

I claim:-

1. A chain harrow composed of links linked together longitudinally andlinks crmnccting the alternate links of each longitudinal row with theopposite links of the adjacent row the said links being connectedtogether in planes relatively at right angles one to the other wherebythe links of the longitudinal rows between said ulter nat'c links willbe caused to operate vertically. i he harrow being formed in front andrenr sections detach-ably connecl'ed. drug bars at the rear of thelongitudinal rows. :1 draft bar at the front ends oisaid rows, and aspreader extending transversely across the harrow and hooked at its endsto engage therewith, substantially as set forth.

A harrow comprising links arranged vertically edge wis and having theintermediate point and projecting bars on opposite sides thereof andwhose free ends form with the point cooperating teeth, substantially asset Forth.

in cross section and having sharp corners with the angles at its outerside, substantially as set forth.

.IOSIAII DATSON.

Witnesses 1 .Tauns I. Wrri'rn, -T. \V. HUnnn.

.1. In a chain harrow an angular link of metal angular

